Buggy code:
public static BcelShadow makeFieldGet ( BcelWorld world , ResolvedMember field , LazyMethodGen enclosingMethod , InstructionHandle getHandle , BcelShadow enclosingShadow ) { } public static BcelShadow makeFieldSet ( BcelWorld world , LazyMethodGen enclosingMethod , InstructionHandle setHandle , BcelShadow enclosingShadow ) { } public static void retargetAllBranches ( InstructionHandle from , InstructionHandle to ) { } public boolean terminatesWithReturn ( ) { } public boolean arg0HoldsThis ( ) { } private BcelVar thisVar = null ; private BcelVar targetVar = null ; private BcelVar [ ] argVars = null ; private Map kindedAnnotationVars = null ; private Map thisAnnotationVars = null ; private Map targetAnnotationVars = null ; private Map [ ] argAnnotationVars = null ; private Map withinAnnotationVars = null ; private Map withincodeAnnotationVars = null ; public Var getThisVar ( ) { } public Var getThisAnnotationVar ( UnresolvedType forAnnotationType ) { } public Var getTargetVar ( ) { } public Var getTargetAnnotationVar ( UnresolvedType forAnnotationType ) { } public Var getArgVar ( int i ) { } public Var getArgAnnotationVar ( int i , UnresolvedType forAnnotationType ) { } public Var getKindedAnnotationVar ( UnresolvedType forAnnotationType ) { } public Var getWithinAnnotationVar ( UnresolvedType forAnnotationType ) { } public Var getWithinCodeAnnotationVar ( UnresolvedType forAnnotationType ) { } private BcelVar thisJoinPointVar = null ; private boolean isThisJoinPointLazy ; private int lazyTjpConsumers = 0 ; private BcelVar thisJoinPointStaticPartVar = null ; public final Var getThisJoinPointStaticPartVar ( ) { } public final Var getThisEnclosingJoinPointStaticPartVar ( ) { } public void requireThisJoinPoint ( boolean hasGuardTest ) { } public Var getThisJoinPointVar ( ) { } void initializeThisJoinPoint ( ) { } private boolean checkLazyTjp ( ) { } InstructionList loadThisJoinPoint ( ) { } InstructionList createThisJoinPoint ( ) { } public BcelVar getThisJoinPointStaticPartBcelVar ( ) { } public BcelVar getThisJoinPointStaticPartBcelVar ( final boolean isEnclosingJp ) { } public BcelVar getThisEnclosingJoinPointStaticPartBcelVar ( ) { } public Member getEnclosingCodeSignature ( ) { } private InstructionList makeArgsObjectArray ( ) { } private void initializeThisVar ( ) { } public void initializeTargetVar ( ) { } public UnresolvedType ensureTargetTypeIsCorrect ( UnresolvedType tx ) { } public void initializeArgVars ( ) { } public void initializeForAroundClosure ( ) { } public void initializeThisAnnotationVars ( ) { } public void initializeTargetAnnotationVars ( ) { } public void initializeArgAnnotationVars ( ) { } protected Member getRelevantMember ( Member foundMember , Member relevantMember , ResolvedType relevantType ) { } protected ResolvedType [ ] getAnnotations ( Member foundMember , Member relevantMember , ResolvedType relevantType ) { } public void initializeKindedAnnotationVars ( ) { } ResolvedMember findMethod2 ( ResolvedMember [ ] rm , Member sig ) { } private ResolvedMember findMethod ( ResolvedType aspectType , ResolvedMember ajcMethod ) { } private ResolvedMember findField ( ResolvedMember [ ] members , Member lookingFor ) { } public void initializeWithinAnnotationVars ( ) { } public void initializeWithinCodeAnnotationVars ( ) { } void weaveBefore ( BcelAdvice munger ) { } public void weaveAfter ( BcelAdvice munger ) { } public void weaveAfterReturning ( BcelAdvice munger ) { } public void weaveAfterThrowing ( BcelAdvice munger , UnresolvedType catchType ) { } public void weaveSoftener ( BcelAdvice munger , UnresolvedType catchType ) { } public void weavePerObjectEntry ( final BcelAdvice munger , final BcelVar onVar ) { } public void weavePerTypeWithinAspectInitialization ( final BcelAdvice munger , UnresolvedType t ) { } public void weaveCflowEntry ( final BcelAdvice munger , final Member cflowField ) { } public void weaveAroundInline ( BcelAdvice munger , boolean hasDynamicTest ) { } private InstructionList getRedoneProceedCall ( InstructionFactory fact , LazyMethodGen callbackMethod , BcelAdvice munger , LazyMethodGen localAdviceMethod , List argVarList ) { } private InstructionList getRedoneProceedCallForAnnotationStyle ( InstructionFactory fact , LazyMethodGen callbackMethod , BcelAdvice munger , LazyMethodGen localAdviceMethod , List argVarList , boolean isProceedWithArgs ) { } public void weaveAroundClosure ( BcelAdvice munger , boolean hasDynamicTest ) { } InstructionList makeCallToCallback ( LazyMethodGen callbackMethod ) { } private InstructionList makeClosureInstantiation ( Member constructor , BcelVar holder ) { } private IntMap makeProceedArgumentMap ( BcelVar [ ] adviceArgs ) { } private LazyMethodGen makeClosureClassAndReturnConstructor ( String closureClassName , LazyMethodGen callbackMethod , IntMap proceedMap ) { } public LazyMethodGen extractMethod ( String newMethodName , int visibilityModifier , ShadowMunger munger ) { LazyMethodGen . assertGoodBody ( range . getBody ( ) , newMethodName ) ; if ( ! ( getKind ( ) . allowsExtraction ( ) ) ) <START_BUG> throw new BCException ( ) ; <END_BUG> LazyMethodGen freshMethod = createMethodGen ( newMethodName , visibilityModifier ) ; range . extractInstructionsInto ( freshMethod , makeRemap ( ) , ( ( ( getKind ( ) ) != ( PreInitialization ) ) && ( isFallsThrough ( ) ) ) ) ; if ( ( getKind ( ) ) == ( PreInitialization ) ) { addPreInitializationReturnCode ( freshMethod , getSuperConstructorParameterTypes ( ) ) ; } getEnclosingClass ( ) . addMethodGen ( freshMethod , munger . getSourceLocation ( ) ) ; return freshMethod ; } private void addPreInitializationReturnCode ( LazyMethodGen extractedMethod , Type [ ] superConstructorTypes ) { } private Type [ ] getSuperConstructorParameterTypes ( ) { } private IntMap makeRemap ( ) { } private LazyMethodGen createMethodGen ( String newMethodName , int visibilityModifier ) { } private boolean samePackage ( String p1 , String p2 ) { } private Type [ ] addType ( Type type , Type [ ] types ) { } private Type [ ] addTypeToEnd ( Type type , Type [ ] types ) { } public BcelVar genTempVar ( UnresolvedType typeX ) { } public BcelVar genTempVar ( UnresolvedType typeX , String localName ) { } private int genTempVarIndex ( int size ) { } public InstructionFactory getFactory ( ) { } public ISourceLocation getSourceLocation ( ) { } public Shadow getEnclosingShadow ( ) { } public LazyMethodGen getEnclosingMethod ( ) { } public boolean isFallsThrough ( ) { } public void setActualTargetType ( String className ) { } public String getActualTargetType ( ) { } }

Fix:
throw new org . aspectj . weaver . BCException ( ( ( "Attempt<seq2seq4repair_space>to<seq2seq4repair_space>extract<seq2seq4repair_space>method<seq2seq4repair_space>from<seq2seq4repair_space>a<seq2seq4repair_space>shadow<seq2seq4repair_space>kind<seq2seq4repair_space>that<seq2seq4repair_space>does<seq2seq4repair_space>not<seq2seq4repair_space>support<seq2seq4repair_space>this<seq2seq4repair_space>operation<seq2seq4repair_space>(" + ( getKind ( ) ) ) + ")" ) ) ;